Tractor-plow



C. OWENS. TRACTOR PLow.

APPL'ICATION FILED JUNE 5,1920.

Patented Nov. 8, 1921.

2 SHEETS-SHEET l.

Unvrzor:

es Owens C. OWENS.

TRACTOR PLOW,

APPLICATION FILED JUNE 5,1920.

1,396,049. Patented Nov. 8, 1921.

2 SHEETS-SHEET 2.

Sn newton:

Cha/Jes Owe 21send for a the disk plows 23.

UNITED STATES CHARLES OWENS, 0F CHATTANOOGA, TENNESSEE.

- TRACTOR-PLOW.

Specification of Letters Patent.

Original application led October .27, 1919,Serial No. 333,512. Divided and this application led To all u2/tom it'mag/ concern:

Be it known that I, CHARLES OWENS, a citizen of the United States, and resident of Chattanooga, Tennessee, have invented certain new and useful Improvements in Tractor-Plows, of which thefollowing is a 'specification.

This application is a division of that filed Oct. 27, 1919, No. 333,512. My invention relates to plows and concerns particularly a furrow wheel organization by which the furrow wheel-will be automatically controlled as well as controlled by hand, in order to perform its functions properly and maintain' its control upon the plow under different conditions of work.

The invention is shown in the accoml'panying drawings iin which- V Figure 1 is a plan view of one form of plow to which my invention is applicable.

Fig. 2 is a rear view of Fig. l, F ig. 3 a side view of Fig. 1, and

Fig. V4 shows details.

It will be understood that the invention is applicable to forms of plows other than that shown and described herein and the illustration and descriptionpare to be regarded as means of illustrating the principles involved in my invention and not as being restrictive upon the scope of the claims.

I show at 10 the frame of the tractor which has traction wheels 11 and which is provided with the ordinary driving mechanism. To the rear end of the frame 10 is attacheda supplemental frame or beam 12 by means of clamp members 13. This frame or beam is made up of two side members connected by a cross member 16. Depending from this cross member there is a bracket 17 havinga bearing 18 at`its lower shaft or rod 19,`the other end of which finds a bearing in 'the ,member 18 connected with one of the side bars of the supplemental frame or beam 12. On thisl rod or shaft 19 there is hung a frame 2O by means of hangers 21 and to this frame are secured brackets or arms 22 which ycarry The furrow wheel is shown at 24 carried by an arm 25 which in turn is adjustably supported by a bracket 26 turnable about the rod 19. The bracket 26 has an arm 26X to which is attached al spring 26 extending from a'bell crank lever 26 operable from a hand lever 26a'by a 'June 5, 1920. 4serial No. 386,737.

rod 2Gb. the usual The hand lever is combined with toothed segment and lock by which 1t may be set and held in any desired position. The spring forms a link between the bell crank lever and the bracket by which the bracket may be turned to throw the furrow wheel down to its work. [The disk plows can be adjusted as to inclination by raising or lowering their supports or rather turning them about the axis of the shaft 19 and for this purpose a lever 27'is provided pivotally mounted 'at its lower end and working along side of a segment 28 to which it may be locked at different angular positions by means of the locking bolt 29 which is controlled from the finger lever 30 as is customary in this class of implements.

The lever 27 is connected by a link 31 with a bell crank lever 32 pivotally mounted on the frame and connected by a chain 33 with one of the brackets or frame members which support the disk so that by operating the handlev 27 the disk carrying frame may be adjusted about the aXis of the shaft 19 and thus the disk plows can be adjusted as required. A spring 34 serves to balance the weight of the plow. This spring is attached to the bell crank lever 32 at one end and to a suitable fixed part of the frame at the other end. y f

In the operation of this implement as the disks are swung around beneath the center of the shaft 19 the tractive effect of the traction wheels is increased, and thus downward thrust will be imposed on the rear end of the tractor and its traction wheels to get a tractive engagement with the ground eX- ceeding that which would be due merely to the weight of the main tractor and that of'v the attached implement. I would point out, however, that an advantage is desired from attaching the supplemental frame 12 with the disk plowsvand associated parts as a trailer to the `main tractor because 'the weight of these parts is imposed on the main tractor at 'ust the point where this weight will be most effective in increasing the tread weight of the main tractorl That is, this weight will be imposed at a point near the traction wheels and will not be taken mainly or in large part by the front wheels of the tractor, and thus these front wheels will offer a minimum resistance to. the forward motion of the tractor as they will be com- Patented Nov. 8, 1921.

' tractive action will be increased.

hard dry soilor when a greater number of' The principle above explained of impos- -ing tread weight on the traction wheels by attachment having frame of its own car-v ried by wheels, the frame being attached to the main frame of the tractor to impose the weight thereon and to impose the thrust of the plow in theground thereon.

Reverting to the use of the spring 26 1t will be observed that by turning the bell crank lever so as to draw upon or tension this spring, the bracket26 will be turned to throw .the arm 25 with the furrow wheel downwardly. The tension of the spring is at all times under the control of the operator by means of hthe hand lever and intermediate connections. The object of this construction is to control the side thrust of the disks independent'of the disks themselves, to meet the conditions of changing from one depth of plowing to another, plowing in disks are employed.

ne serious fault with all d'sk plows or with mold board plows havifig no landside 'is their tendency to side draft, this being especiallytrue of disk plows. When- 'l ever the disks encounter hard material or a stone of sufficient size tobe thrown out of the ground the furrow wheel if'mounted in the ordinary way will rise out of the furrow and the plow then having no part bearing against the land it will jump sidewise and leo the continuity of the furrow will` be destroyedrat this point. With my improvement, however, in whlch the spring 26 stretched to considerable tension'is tending lto force .the furrow wheel down, the rise -of the vdisks will not result in lifting the 11 butby the "front wheels shown and that` the furrow-wheel plays no part in supporting the plow frame. Also that this furrow wheel and its mounting are not in the form 4 of a caster wheel and the mounting does not turn about a vertical axis offset, from the 4 vertical plane in which the axis of the wheel lies. By my construction the furrow wheel is inclined to the line of draft and it can roll with its periphery against the land side, while down in the furrow, and can thus eifectually resist any tendency for the -r'ear end of the plow frame to swing around, should thedisk or share rise out of the furrow. `A caster wheel being hung on an offset vertical pivot can swing as a whole around this pivot,which it would do if pressure is exerted laterally thereof, and thus.

such caster wheel would be in position to roll up out ofthe furrow and would not serve to hold the plow to i`scourse.

I claim as my invention:

y,1. In combination in a plow, a frame, a plow body,"a furrow wheel in rear of the plow body to run in the furrow being formed, a spring for forcing said furrow wheel to its work downwardly-and laterally of the furrow independently ofthe plow body, and

means for applying tension to the said.

spring, said means consisting of a lever and a bell crank for stretching the spring in initially forcing the furrow wheel down, substantially as described.

2. In combination in a' plow, a frame, a plow body, a furrow wheel in rear -of the plow body, free to swing downwardly independently4 of the plow bodysaid furrow wheel being inclined laterally to the line of draft to rollwith its lower edge on the landside within the furrow being formed -and thus sustainlateral thrust, a support for said wheel, a substantially horizontal pivot' about which said support turns, and a spring for forcing ,the furrow wheel downwardly, relative to the plow body should this rise.

3. In combination in a plow, a frame, a plow body, a furrow wheel in. rear of the plow body free to swing downwardly independently of the plow body, said furrow wheel being inclined laterally to the linef of d raft to roll with its lower edge on the land- ,side w1thin the furrow being formed, a supl port for said wheel extending therefrom transversely of the furrow ,toward the landside a substantiallyhorizontal pivot for the landside end of said support, and a spring for forcing the furrow wheel down, relative to the plow body should. this rise.

4. In combination in a plow, a frame, carrying wheels therefor, a plow body, a furrow wheel inrear of the plow body, an arm carrying sai-d furrow wheel at one end extending laterallytherefrom 'toward the landside and pivotally mounted intermediate of its length to move in a vertical plane sub-j stantially transverse to the furrow, a spring connection with the other end of said arm!4 and extending upwardly therefrom, connections for drawing upwardly upon said spring for stretching the same and forcing the furrow wheel to its' work, said spring on 'relaxing due to the rise of the plow in relation to the bottoml of the furrow keeping th furrow wheel down, substantially as described.

In testimony whereof, I aix my signature.

' CHARLES OWENS. 

